PSEB Solutions for Class 10 Maths Chapter 8 Introduction to Trigonometry Ex 8.2

PSEB Solutions for Class 10 Maths Chapter 8 Introduction to Trigonometry Ex 8.2

PSEB 10th Class Maths Solutions Chapter 8 Introduction to Trigonometry Ex 8.2

Question 1.
Evaluate the following:
(i) sin 60° cos 30° + sin 30° cos 60°

(ii) 2 tan² 45° + cos² 30° – sin² 60°

Question 2.
Choose the correct option and justify your choice.

(iii) sin 2A = 2 sin A is true when
(A) 0°
(B) 30°
(C) 45°
(D) 60°

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